Materials Literature
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Two types of dimeric complexes [Ln2(hfa)6(mu2-O(CH2)2NHMe2)2] and [Ln(thd)2(mu2,eta2-O(CH2)2NMe2)]2 (Ln = YIII, EuIII, GdIII, TbIII, TmIII, LuIII; hfa- = hexafluoroacetylacetonato, thd- = dipivaloylmethanato) are obtained by reacting [Ln(hfa)3(H2O)2] and [Ln(thd)3], respectively, with N,N-dimethylaminoethanol in tolue…
An investigation of the electrodeposition of ZnO nanowire arrays from the reduction of dissolved molecular oxygen in solutions containing different anions (Cl -, SO 4 2-, and CH 3 COO - ) is reported. A significant variation of the diameter (65−110 nm) and length (1.0−3.4 μm) of the nanowires was obtained by changing…
Heterostructured transition metal oxide nanowires are potential candidates to incorporate rich functionalities into nanowire-based devices. Although the oxide heterointerface plays a crucial role in determining the physical properties, the effects of the heterointerface on the oxide nanowire's properties have not been…
A [poly(acrylic acid)/graphite oxide]n [(PAA/GO)(n)] film with a conductivity of 60 S.cm(-1) was grown layer-by-layer (LbL) using Langmuir-Blodgett self-assembly techniques. GO nanoplatelets were prepared from natural graphite by oxidizing, ball milling, exfoliating, and modifying with cationic surfactant cetyltrimeth…
Colloidal, monodisperse, highly crystalline ITO nanoparticles with various particle sizes and tin contents were prepared by a one-pot thermal decomposition of tin and indium precursors in oleylamine. The PL emission maxima become blue-shifted as the particle size decreases and the tin content increases.
Sorption of three types of dissolved organic matter (DOM; i.e., humic acid, peptone and alpha-phenylalanine) by a mutiwalled carbon nanotube (MWNT40) and sorption of phenanthrene (Phen), naphthalene (Naph), and 1-naphthol (1-Naph) by the original and DOM-coated MWNT40 were examined. Sorption data of Phen, Naph, and 1-…
The synthesis and characterization of colloidal mesoporous silica (CMS) functionalized with vinyl-, benzyl-, phenyl-, cyano-, mercapto-, aminopropyl- or dihydroimidazole moieties is reported. Uniform mesoporous particles ranging in size from 40 to 150 nm are generated in a co-condensation process of tetraethylorthosil…
The two-photon absorption properties of Au25 cluster has been investigated with the aid of two-photon excited fluorescence in the communication wavelength region with a cross-section of 2700 GM at 1290 nm. Additional visible fluorescence has been discovered for small gold clusters which is two-photon allowed (after ex…
NiFe inserted layer with different thicknesses on the dielectric properties of multiferroic AlN∕NiFe∕AlN multilayer films fabricated on the B270 glass substrates by the reactive sputtering technique was studied. The variation of dielectric constant for multilayer films is dependent on the thickness of the NiFe inserte…
The kinetics and mechanism of the solid-state reaction in BaTiO 3 powder synthesis were investigated microstructurally. An equimolar mixture of BaCO 3 and TiO 2 (rutile) powders calcinated at 600 and 800 °C in air was observed by using transmission electron microscopy (TEM). During the reaction, layered BaTiO 3 was fo…
In many polycrystalline piezoelectric ceramics, domain switching during the poling process leads to the development of a macroscopic polarization and piezoelectric behavior. Traditionally, poling involves the application of electric fields across two parallel electrodes. In the present work, a radial mechanical compre…
The wetting properties of polypropylene (PP) surfaces were modified by adjusting the dimensions of the surface nanostructure. The nanostructures were generated by injection molding with nanoporous anodized aluminum oxide (AAO) as the mold insert. Atomic layer deposition (ALD) of molybdenum nitride film was used to con…
Biaxial creep tests were performed on fine-grained Ti–3Al–2.5V tubing at 823 and 873 K in the stress range σ/E = 1.7 × 10−4 to σ/E = 5.9 × 10−4. Subsequently, the creep data were analysed to determine the stress exponent and activation energy. A stress exponent value of 1 and an activation energy equal to that for gra…
A resonant x-ray magnetic diffraction study was performed for pure and (Cd,Ga)-doped $\mathrm{Gd}{\mathrm{In}}_{3}$ single crystals with cubic structure. All studied samples show an equal-magnitude antiferromagnetic spin structure with propagation vector $\stackrel{P\vec}{\ensuremath{\tau}}=[\frac{1}{2},\frac{1}{2},0]…
In order to separate and characterize some grades of paraffin waxes from El-Ameria crude waxes (slack waxes), a one-stage fractional crystallization technique has been done to separate the paraffin waxes with different characteristics by using different solvents and solvent mixtures at ambient temperature of 20°C and…
We study the statistical properties of peculiar responses in glassy systems at mesoscopic scales based on a class of mean-field spin-glass models which exhibit one step replica symmetry breaking. Under variation of a generic external field, a finite-sized sample of such a system exhibits a series of stepwise responses…
"Here, the world's most active and productive computational scientists from academia and industry present established, effective and powerful tools for understanding catalysts. With its broad scope - nitrogen fixation, polymerization, C-H bond activation, oxidations, biocatalysis and much more - this book represents a…
We report methods for the acquisition and analysis of optical images formed by thin films of twisted nematic liquid crystals (LCs) placed into contact with surfaces patterned with bio/chemical functionality relevant to surface-based assays. The methods are simple to implement and are shown to provide easily interprete…
In this study we examine the release profile of bovine serum albumin (BSA) from a porous polymer matrix derived from a co-continuous polymer blend. The porosity is generated through the selective extraction of one of the continuous phases. This is the first study to examine the approach of using morphologically tailor…
In response to increasing interest in the area of subdiffraction-limited near-field imaging, the performance of several different realizable and theoretical superresolving silver-based lenses is simulated for a variety of different input object profiles. A computationally-efficient T-matrix technique is used to model…